There is not such think as the Best tier X. Every tier X is good, all of them have a different way to play. And different use in Clan Wars, and Pub Matches, I have my best tier X, but I dnt think that exist the Best tier X. It all depend on your playstyle. Tell me how you play, and I will tell you your tank.

I love all the tier 10 heavies but i like playing the E-100 the most i use a mix of AP and HE a lot of people think HE is worth less after the nerf but at 15cm it can do a lot of damage to things you ap can't pen and a lot of the newer tanks seam to be very weak to HE